Tropical storm Isaac heads north from New Orleans – in pictures

Tropical storm Isaac heads north from New Orleans – in pictures

Heavy rain continued to drench Louisiana and Mississippi as Isaac trudged slowly northwards, but fortified levees and an elaborate flood containment plan appeared to have spared New Orleans from disaster

Thursday 30 August 2012 09.17 EDT
First published on Thursday 30 August 2012 09.17 EDT

Research students from the University of Alabama measure wind speeds as hurricane Isaac makes landfall in New Orleans